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dfa6ce636cb8faeaef02b09c973400a410004edf
linux/drivers/video/fbdev/core
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Andrey Vatoropin 011a050280 fbcon: check return value of con2fb_acquire_newinfo() 
If fbcon_open() fails when called from con2fb_acquire_newinfo() then
info->fbcon_par pointer remains NULL which is later dereferenced.

Add check for return value of the function con2fb_acquire_newinfo() to
avoid it.

Found by Linux Verification Center (linuxtesting.org) with SVACE.

Fixes: d1baa4ffa6 ("fbcon: set_con2fb_map fixes")
Cc: stable@vger.kernel.org
Signed-off-by: Andrey Vatoropin <a.vatoropin@crpt.ru>
Signed-off-by: Helge Deller <deller@gmx.de>
2026-02-14 11:07:12 +01:00
..
bitblit.c
Merge tag 'v6.18-rc6' into drm-next
2025-11-21 08:55:08 +10:00
cfbcopyarea.c
fbdev: Include <linux/export.h>
2025-06-16 09:06:19 +02:00
cfbfillrect.c
fbdev: Include <linux/export.h>
2025-06-16 09:06:19 +02:00
cfbimgblt.c
fbdev: Include <linux/export.h>
2025-06-16 09:06:19 +02:00
cfbmem.h
fbdev: Refactoring the fbcon packed pixel drawing routines
2025-03-26 22:39:21 +01:00
fb_backlight.c
backlight: Replace fb events with a dedicated function call
2025-04-10 10:39:03 +01:00
fb_chrdev.c
fbdev: Remove default file-I/O implementations
2023-11-29 12:20:53 +01:00
fb_cmdline.c
fbdev: Fix logic error in "offb" name match
2025-10-10 00:31:13 +02:00
fb_copyarea.h
fbdev: Refactoring the fbcon packed pixel drawing routines
2025-03-26 22:39:21 +01:00
fb_ddc.c
fbdev: Include <linux/export.h>
2025-06-16 09:06:19 +02:00
fb_defio.c
fbdev: Include <linux/export.h>
2025-06-16 09:06:19 +02:00
fb_draw.h
fbdev: Refactoring the fbcon packed pixel drawing routines
2025-03-26 22:39:21 +01:00
fb_fillrect.h
fbdev: core: Fix ubsan warning in pixel_to_pat
2025-09-30 23:21:34 +02:00
fb_imageblit.h
fbdev: Refactoring the fbcon packed pixel drawing routines
2025-03-26 22:39:21 +01:00
fb_info.c
fbdev: Track display blanking state
2025-04-10 10:38:57 +01:00
fb_internal.h
fbdev/core: Move logo functions into separate source file
2023-09-11 15:12:35 +02:00
fb_io_fops.c
fbdev: Include <linux/export.h>
2025-06-16 09:06:19 +02:00
fb_logo.c
fbdev/core: Remove empty internal helpers from fb_logo.c
2023-09-11 15:12:37 +02:00
fb_notify.c
video: fbdev: core: Fix kernel-doc warnings in fbmon + fb_notify
2020-12-08 18:31:56 +01:00
fb_procfs.c
fbdev/core: Move procfs code to separate file
2023-06-27 09:58:51 +02:00
fb_sys_fops.c
fbdev: Include <linux/export.h>
2025-06-16 09:06:19 +02:00
fbcmap.c
fbdev: Include <linux/export.h>
2025-06-16 09:06:19 +02:00
fbcon_ccw.c
fbcon: Streamline setting rotated/unrotated bitops
2025-09-19 10:04:06 +02:00
fbcon_cw.c
fbcon: Streamline setting rotated/unrotated bitops
2025-09-19 10:04:06 +02:00
fbcon_rotate.c
fbcon: Streamline setting rotated/unrotated bitops
2025-09-19 10:04:06 +02:00
fbcon_rotate.h
fbcon: Streamline setting rotated/unrotated bitops
2025-09-19 10:04:06 +02:00
fbcon_ud.c
fbcon: Streamline setting rotated/unrotated bitops
2025-09-19 10:04:06 +02:00
fbcon.c
fbcon: check return value of con2fb_acquire_newinfo()
2026-02-14 11:07:12 +01:00
fbcon.h
fbcon: Remove fb_debug_enter/_leave from struct fb_ops
2025-12-02 09:20:44 +01:00
fbcvt.c
fbdev: core: fbcvt: avoid division by 0 in fb_cvt_hperiod()
2025-05-31 10:24:02 +02:00
fbmem.c
fbcon: Set fb_display[i]->mode to NULL when the mode is released
2025-10-28 22:59:19 +01:00
fbmon.c
sysfb: Move edid_info into sysfb_primary_display
2025-12-16 14:12:44 +01:00
fbsysfs.c
fbdev: Use device_create_with_groups() to fix sysfs groups registration race
2026-02-14 11:07:12 +01:00
Kconfig
fbdev: Turn FB_MODE_HELPERS into an internal config option
2025-09-23 15:56:04 +02:00
Makefile
fbdev: Rename FB_SYS_FOPS token to FB_SYSMEM_FOPS
2023-11-29 12:20:42 +01:00
modedb.c
fbdev: Include <linux/export.h>
2025-06-16 09:06:19 +02:00
softcursor.c
fbcon: Rename struct fbcon_ops to struct fbcon_par
2025-09-19 10:04:02 +02:00
svgalib.c
Merge tag 'fbdev-for-6.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdev
2025-08-02 09:58:11 -07:00
syscopyarea.c
fbdev: Include <linux/export.h>
2025-06-16 09:06:19 +02:00
sysfillrect.c
fbdev: Include <linux/export.h>
2025-06-16 09:06:19 +02:00
sysimgblt.c
fbdev: Include <linux/export.h>
2025-06-16 09:06:19 +02:00
sysmem.h
fbdev: Refactoring the fbcon packed pixel drawing routines
2025-03-26 22:39:21 +01:00
tileblit.c
fbcon: Move fbcon callbacks into struct fbcon_bitops
2025-09-19 10:04:05 +02:00